When in Rome is a romantic comedy with Kristen Bell and Josh Duhamel in the lead roles.

The story is when lovelorn museum curator Beth (Kristen Bell) travels to Rome for her sister’s wedding, she gets drunk and wanders into the (fictitious) Fountain of Love and picks up a few coins from the water. Through some magical spell, the five men who dropped the coins fall madly in love with her, and they all manage to find her when she returns to New York. The only one who interests her is a reporter (Josh Duhamel), but she has to decide whether his love is genuine while she fights off the other four suitors.

None of the qualities like clever plot complications and appealing characters is in evidence here on which the romantic comedies survived. Director Mark Steven Johnson (”Simon Birch,” “Daredevil”) tries to embellish the hollow script with pratfalls that are no more amusing than the ham-fisted dialogue.

Duhamel manages to exhibit low-key charm even when he’s bumping into trees for no good reason. The actors playing the other suitors — Jon Heder, Will Arnett, Dax Shepard and Danny DeVito — are reduced to mugging outrageously. Anjelica Huston as Beth’s imperious boss seems to be trying to channel Meryl Streep in “The Devil Wears Prada,” which might have worked if she had any witty lines.

Only a few scenes were shot in Rome, the film doesn’t even get to take advantage of the location. One curiosity is that Don Johnson, who plays Beth’s philandering father, receives no credit in the film. He might be the luckiest person associated with this misbegotten production.