Mankatha should be classified as a factual example of a bad movie with Ajith saying "Bladu bladu bladu bladu" in trailers instead of "money..". Maybe it should be called "A Venkat Prabhu Bore". So that there is no argument on the subject. Sometimes these movie makers shouldn't be allowed to talk about how much fun they had while shooting the movie. And how cool everyone was and what a riot the shooting process was. I dont care if Ajith made biryani for the crew or if he made Punnaku. I'd rather all these people had diarrhea for 60 straight days and were retching vomit - provided they give me a good movie. This way they suffer and I'll have some fun. The other-way around, which is what happened with Mankatha, was annoying.
I think Ajith was the reason why the movie didn't work for me. His lack of acting ability, dancing ability, shabby dialog delivery, dead-man expression, and his poor presence bothered me no end. From the first frame where he bursts into the scene - I saw in him a flabby fat man with a un-hide-able paunch and one who could not fit into police inspector clothes without looking shabby and out of shape. Spending so much build up to show Ajith as cool has not allowed Venkat prabhu to make a movie that is actually interesting. Take the scene where Ajith waltzes to some western classical music as he shoots and kills some burning baddies in a fight scene. I am sure Venkat prabhu intended this to be a cool scene where he wants to portray Ajith as a person who enjoyed being part of tight, near-death situation. But it didnt land that way. Ajith looked pretty much like a stupid fat guy who is so stoned that he cant differentiate being in a duet song Vs being in a fight scene.
No amount of plot twists and turns could make up for the poorly explained, hastily described plot. The actual heist of stealing money from Arumugam Chettiar was dead on arrival and there was nothing clever about it. Premji Amaran's jokes fell flat. Venkat prabhu did not manage to pull a single joke that was irreverent or funny. Goa was more interesting.
I think he was better off making movies without these so called stars.