The irony of an ex-cop Olivier Marchal, co-writing, directing and acting in a somewhat true tale of real life French criminal Edmond Vidal aka Momon is something some, like me will find irresistably attractive. Surprisingly, although we are left in no doubt that Vidal and his compatriots are mired in the underworld and its sins, this film paints quite a sympathetic and humanistic portrait of its central players.
There is nothing really original about Gang Story (including the title). It's a story we've seen before (rise and fall of a career criminal and his associates), told in a semi-linear style combining plentiful flashbacks to pivotal past moments with present day events (The Godfather Part 2 and Goodfellas). Marchal frequently acknowledges and pays homage to Coppola and Scorsese throughout the film, but I personally would have preferred to have seen him, as Coppola does, use longer sequences before changing time periods. It does get unsettling, if not annoying and confusing, when some of these intercut scenes last all of 10 seconds, before changing time periods. I also would have appreciated an elaboration on the childhood relationship between Momon and Serge, which I think would have strengthened the story even more. Onscreen, it's all over within a minute, before we move on to when they were young adults. And the storyline to this movie, is its real appeal; the bonds of loyalty between crime boss and sidekick stretching over generations and examining how far those bonds can be stretched, before risking permanent dislocation. Gerard Lanvin (Momon) and Tcheky Karyo (Serge) are well cast in the contemporary lead roles, though the film, as mentioned earlier is seen from the former's perspective.
The film claims to be based firmly on true events and characters, though I have no idea how close to reality, the depicted events actually are. For all of that, Marchal presents a story, that is never less than compelling, culminating in a climax, which, while some may have predicted, is nevertheless full of pathos and feeling. Gang Story is worth your acquaintance.