Which romantic comedy from 2004 stars Jennifer Garner and Mark Ruffalo?

The 2004 romantic comedy starring Jennifer Garner and Mark Ruffalo is “13 Going on 30.”

Jennifer Garner plays Jenna Rink, a teenager who suddenly wakes up in the body of her 30-year-old self after making a desperate birthday wish. Mark Ruffalo plays Matt Flamhaff, her childhood best friend, whose steady presence helps Jenna reconsider the adult life she has built.

The film’s fantasy premise allows it to explore growing up, friendship, ambition, and the gap between teenage expectations and adult reality. Jenna becomes a successful magazine editor, but she discovers that professional status and popularity have come at the cost of important relationships.

A common mix-up is “The Wedding Planner,” which also stars a major romantic-comedy actress but was released in 2001 and features Jennifer Lopez opposite Matthew McConaughey. “27 Dresses” is another Jennifer Garner film, but it came out in 2008. “13 Going on 30” was directed by Gary Winick and became especially associated with the pop song “Thriller” and its memorable dance sequence.