i loved this movie.
one of the things i don't really get is why couldn't cobb convince mal that they were in limbo the first time around? once he remembered they were in limbo, it should have been fairly easy to make mal realize that it wasn't the real world. they were doing impossible things..
plus, they got to limbo on purpose. if someone gets there "accidentally" like saito or cobb when he drowns.. they get disoriented and they forget they're dreaming. that's why saito's an old ass man who's forgotten he's in a dream and cobb only realizes he's in limbo because of something saito says.
but if you go there on purpose, like cobb and ariadne, then you get to limbo remembering you're in limbo.
with that, it should have been cake to make mal realize they were still dreaming. no need to fukk around with her totem.