Gautham Menon has almost completed working on tentatively titled ‘Thala 55’ starring Ajith Kumar, Trisha and Anushka Shetty in lead roles. The film is produced by AM Rathnam with Harris Jayaraj has composing music. Some of the close sources say that Gautham while shooting for the film didn’t reveal the climax to anyone including Ajith Kumar. The fact is that he wants even the characters in the film to travel alongside the story without knowing the climax so that there would be more involvement by actors turning into characterisations themselves. Harris Jayaraj has completed tuning songs and the final mixing will be done anytime. The audio and trailer launch is scheduled to happen anytime sooner by last week of November and the film is to hit screens by December end.