Jackie did well- Coogan was a bust- no chemistry

shut up idiot, Coogan was great, its just that the movie was crap

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That's a bit harsh, but it was almost as if he was just playing Alan Partridge at times.
Overall I think the film was just generally badly made more that anything, it really lacked continuity and some of the castings were pretty silly.
For example, Jackie Chan was waaay too old to be playing the role of a keen young assistant - heck, how old was his grandmother supposed to be?

5/10: Not quite entertaining, maybe fun for star spotters.

Not Coogan's fault. The movie is quite simply extremely bad and silly and the reason it bombed is that it wasn't marketed correctly. It should have been marked: "Only for kids below the age of eight."