I assume that the projection stand and the screen are anchored into the ground, but otherwise Ole Scheeren's temporary movie theater off the coast of Thailand rocked with the waves. A recent film festival used it for private viewings. What would you want to watch at this theater? Titanic? Spongebob Squarepants? Waterworld?
Link | Architect's Website | Photo: Piyatat Hemmatat
May get a little seasick with that one though.
james bond in the man with the golden gun