Will Smith’s con-man caper “Focus” disrobed “Fifty Shades of Grey” at the box office, but the film’s modest $19.1 million opening still left questions about the drawing power of the once unstoppable star.

According to studio estimates Sunday, Warner Bros.’ “Focus” easily topped all competitors on a weekend with little competition at North American multiplexes. In second place was the Colin Firth spy thriller “Kingsman: The Secret Service,” which made $11.8 million in its third week of release.

After two weeks atop the box office, “Fifty Shades of Grey” continued its steep slide, landing in fourth with an estimated $10.9 million for Universal Pictures. “Fifty Shades,” which has made $486.2 million globally, fell just behind Paramount’s “The SpongeBob Movie: Sponge Out of Water,” which earned $11.2 million in its fourth week.

The weekend’s only other new wide release, Relativity’s horror film “The Lazarus Effect,” opened in fifth place with $10.6 million.