The job of Lawrence and Raven is mainly to react - to look exasperated, embarassed or angry. It's not long before you begin to pity the poor, stranded actors, who have been given virtually nothing to do.
Raven, trying to make the jump to the big screen, is handed a thinly conceived role that trades character for schtick - she leads a busload of Asian tourits in song (oh, those funny Asians), or jumps into a car with teen girlfriends and screams (literally screams) "oh my god" over and over and over again, because I guess that's what teen girls do.
But nothing prepares you for the awful pain produced by the movie's worst running gag - the stranded family is forced to hitch a ride with another father-daughter tandem, this one addicted to karaoke.
Donny Osmond plays the father, and by the time the movie is over, you'll be glad you're not a Mormon, so you can erase the horrible memory of this tortured cameo with bourbon.
When the movie, at long last, reaches its conclusion, Lawrence and Raven are finally given some low-key, sentimental scenes. But even here, "Road Trip" resorts to the hack device - Symone disappears, and dad is left to recall images of his daughter from home videos.
"It goes so fast," he whispers.
Coulda fooled me. *
Produced by Andrew Gunn, directed by Roger Kumble, written by Emi Mochizuki, Carrie Evans, Cinco Paul, Den Duario, music by Edward Shearmur, distributed by Walt Disney Pictures.
