India, Jan. 27 -- Sydney Sweeney made headlines again for another ad campaign gone wrong. TMZ obtained footage of Sweeney climbing the Hollywood Sign and hanging a string of bras across its iconic letter.

While Sweeney's team secured a permit from Film LA to film at the landmark, reports indicate she did not seek permission from the Hollywood Chamber of Commerce to climb, touch, or commercially use the Hollywood Sign itself.

This could potentially mean legal trouble for the actress should the Chamber decide to pursue action against her and her production crew.

The Hollywood Sign is one of Los Angeles' most protected and recognisable attractions. Naturally, the iconic landmark is restricted to public access and under surveillance to pre...