Hendrick Colton, 34, said that he bought a ticket to the summer blockbuster Iron Man at his neighborhood multiplex but wandered into the theater showing Sex and the City instead. "The minute the movie came on, I knew something was terribly, terribly wrong," he said.
Mr. Colton, a sales clerk at a Home Depot in the Akron suburbs, said he tried to leave the theater but was seated in the middle of a row, making it impossible to escape without causing commotion.
"Everyone around me was laughing their heads off and shouting, 'You go, girl!'" he said. "It was terrifying."
A spokesman for New Line Cinema, the company that released Sex and the City, said the film grossed $55 million over the weekend but that Mr. Colton was the only heterosexual man known to have seen it. Friends of Mr. Colton who spoke on condition of anonymity said that the Akron man seemed shaken by the experience of seeing the movie and was concerned that others might now doubt his longstanding claim of being heterosexual.
Davis Logsdon, a professor of human sexuality at the University of Minnesota, says that a straight man could attend a film such as Sex and the City without experiencing any change in his sexual identity.
"A heterosexual man could see that movie and remain heterosexual at its conclusion," Dr. Logsdon says. "Having said that, it's totally gay that he went to that movie."
Elsewhere, in a kick-off to the 2008 general election, John McCain challenged Barack Obama to a "Creepiest Smile" contest.