EN - What would you do if you could change the past? This is the story of Viktor, a brilliant young professor who discovers a way to manipulate time. Now he can finally change the past and help his beloved Lena.  But as Viktor soon learns, changing the past is not without risk.

NL - De befaamde wetenschapper Viktor is al zijn hele leven gelukkig met Lena, ondanks een tragisch ongeval tijdens hun jeugd. Op een dag doet hij samen met zijn enthousiaste assistent Titus een baanbrekende ontdekking: ze kunnen e-mails naar het verleden sturen. Viktors drang om zijn en Lena's verleden te veranderen, wordt te groot en hij drukt op 'send'. Maar het verleden, hoe klein de ingreep ook, verander je niet zonder risico's. Een verrassend - niet zo toevallig - liefdesverhaal, over je geluk in eigen handen nemen, over het lot, het toeval en… het te snel op 'send' drukken.


Title Sum of Histories
Original title Terug naar morgen
Original language Dutch
Status Completed
Production Majority Flemish
Category Features
Genre drama, romance, science-fiction
Year 2015
World première / first public presentation 2015-08-28


Cast Koen De Graeve, Matteo Simoni, Robrecht Vanden Thoren, Karina Smulders, Charlotte Anne Bongaerts, Bart Hollanders
Photography Stijn Van der Veken ASC, SBC
Editing Philippe Ravoet
Sound Leo Franssen
Art director Max Van Essche
Costume Vanessa Evrard
Makeup Marie Brabant
Music Jorrit Kleijnen, Alexander Reumers
Executive Producer Karin S. De Boer
1st AD Martine Temmerman
Sound Design Marc Lizier, Paul Gies

Technical specs

Running time film 84'
Release format DCP
Other available formats Apple ProRes, HQ, ...
Aspect ratio 2:39
Sound format 5.1 / stereo
Colour Colour
Available in 2D


Supported by the Flanders Audiovisual Fund (VAF)
Production partners Pupkin


2016: Hong Kong International Film Festival (HK)

2015: Montreal World Film Festival (CA); Festival International du Film Francophone de Namur (BE)

Sum of Histories Scoops Silver Méliès

Lukas Bossuyt’s debut feature Sum of Histories has won the Silver Méliès for Best European Fantastic Feature Film at the Trieste Science+Fiction Festival in Italy. Moonwalkers, a co-production with Flanders, took home the Audience Award.

Sum of HistoriesThe Jury praised Sum of Histories “for showing the compelling interlacement of the characters’ lives within the sci-fi trope of timeline alteration” and also praised the director for “providing an intriguing analysis of the latest discoveries in the field of quantum physics”.

Published on Tuesday 8 November 2016

Asian premiere for Sum of Histories and The Land of the Enlightened

Sum of Histories, directed by Lukas Bossuyt, and Pieter-Jan De Pue’s The Land of the Enlightened both received their Asian premiere at the Hong Kong International Film Festival, which ended on 4 April. The programme also included four co-productions with Flanders: Schneider vs Bax, The White Knights, Les Cowboys and the short film Splintertime. Finally, Flemish actor Jan Bijvoet was also featured in Embrace of the Serpent, in which he plays one of the main roles.

Sum of HistoriesLukas Bossuyt’s directorial debut Sum of Histories received its Asian premiere at the Hong Kong Film Festival after premiering at the Montreal World Film Festival last summer. It is the story of Viktor, a brilliant young professor who discovers a way to manipulate time. Now he can finally change the past and help his beloved Lena.

Published on Thursday 31 March 2016

Talent from Flanders represented at the Berlinale

There was another strong presence from Flanders at this year’s International Film Festival in Berlin (11-21 February). Actress Martha Canga Antonio took the stage as one of 10 European Shooting Stars; foreign films starring Veerle Baetens and Jan Bijvoet were in the line-up; four film professionals from Flanders were picked for the Berlinale Talents initiative; and a variety of Flemish (co-)productions screened in the European Film Market.

BlackMartha Canga Antonio was one of 10 European Shooting Stars in the spotlight during the Berlinale. The actress made an international impact with her debut role as Mavela in Black, a contemporary Romeo & Juliet story directed by Adil El Arbi and Bilall Fallah. Previous Shooting Stars have included Matthias Schoenaerts, Alicia Vikander, Carey Mulligan and Daniel Brühl.

Published on Monday 15 February 2016

Flanders Image presents "Talent 10 Watch" 2015

Autumn  2015 is set to become the busiest season ever for Flemish cinema. 10 Flemish filmmakers will present their first or second feature in the days, weeks and months to come. To celebrate their success, Flanders Image brought the 10 directors together for a photo shoot at Vilvoorde-based camera and lighting rental company Lites.

Ten to watchThe photo of the 10 filmmakers - available HERE (PSD) or HERE (JPEG) - is free of rights in HR/300dpi. (credit: Johan Jacobs/Flanders Image)

Published on Thursday 3 September 2015

Three World Premieres and Five Other Films Selected for Montreal

Sum of Histories, Lukas Bossuyt’s feature debut, is to have its world premiere in the First Films Competition at the Montreal World Film Festival, which takes place from August 27 till September 7. Empire and Nkosi Coiffure, two shorts from Flanders, also premiere in the World Competition section, while the programme contains five further films from Flanders: Belgian Rhapsody, Marry Me and the shorts Olav, The Soul Is Wandering and Dissonant.

Still: Sum of HistoriesA love story with a touch of sci-fi, Sum of Histories tells the story of Viktor, a brilliant young professor who discovers a way to manipulate time. Now he can finally change the past and help his beloved Lena, but not without risk…

Published on Tuesday 11 August 2015

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Last edited by Caviar on 10 May 2017

Short info

Director Lukas Bossuyt
Producers Frank Van Passel, Ivy Vanhaecke
Writers Lukas Bossuyt

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