Obnoxious
Bo is so obnoxious that it ruined the whole film for me. I mean, he's a thousand times worse than Kip in Adam's Rib, and I thought he was pretty awful.
Also, nobody seems to care. When he jumps on the table in the bar to make everybody shut up, you'd expect a few customers would take him outside and throw him in a dumpster. Now that would have been a nice start for a story. Or like when he literally abducts Cherie at the bus station and nobody lifts a finger.
Nobody gets in his way in any way.
It isn't until the last fifteen minutes that there's a change, by then it was too late to save the film.
5 out of 10
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Rome. By all means, Rome.