A Sacramento drive-in movie theater playing the film, based on the erotic novel by E.L. James, just happens to be right next to a local highway, meaning some drivers are seeing the movie, whether they want to or not.
"If you have kids and you're just driving by and there's traffic, they see that," Rikki Brown, a customer who paid to see the movie, told local ABC affiliate KXTV.
The movie theater, West Wind Sacramento 6 Drive-In, is also playing more family-friendly fare like the new SpongeBob movie, “Sponge Out of Water.”
“We brought kids to see the Sponge Bob movie last night and were surprised/dimayed to find 50 Shades on the screen by the drive way entrance where we sat for at least fifteen windows yelling at the kids "Don't look out that window!!,” one customer wrote on the theater’s Facebook page. “It was an ordeal.”
"Fifty Shades of Grey" earned an estimated $81.7 million from Friday to Sunday, setting records for a Presidents' Day weekend and a Valentine's Day weekend. It was also the second-best debut ever for the month of February, trailing only "The Passion of the Christ," which opened in 2004 with $83.9 million.
ABC News did not hear back from West Wind management.
ABC News' Shane Lou contributed to this report.