She's one of the most successful contemporary pop stars in the world today, and her split from Russell Brand lit up the tabloids for months after it was announced in December of last year. But even that wasn't enough ammo to get people into the theaters to see Katy Perry's new documentary, "Part of Me."

According to Box Office Mojo, the film only grossed $7,150,000 in its opening weekend at the box office domestically. And while it earned another $2.3 million internationally, for a total gross of $10,250,00, it's hard not to consider the film something of a bomb. Also, it's hard not to make comparisons between her opening weekend and that of films from other notable pop stars.

Upon release, Justin Bieber's "Never Say Never" opened with $29.5 million and The Jonas Brothers' "The 3D Concert Experience" opened with $12.5 million. But the success of those two films may have had more to do with the timing than anything. They both opened in February— Bieber's in 2011, The Jonas Brothers in 2009, respectively— when there is far less competition for eyeballs at the theater.

If you were thinking of seeing a movie this past weekend, summer blockbusters like "The Amazing Spider-Man," "Ted" and "Magic Mike" were all dueling it out for your cash. It's not hard to see how a documentary on a largely non-controversial pop star might fall to the wayside in that process. To that end, $10.2 million doesn't seem so bad at all. 

[Business Insider]