Aficionados of Los Angeles street art might recognize the now-familiar work of one “Mr. Brainwash,” a.k.a. MBW, a.k.a. Thierry Guetta, a French filmmaker turned graffiti provocateur. Over the past few months, Mr. Brainwash images have become ubiquitous in greater Hollywood, evolving from the Banksy-style black-and-white stencils of a guy wielding a movie camera to repurposed reproductions of Elvis, Hendrix, Gandhi and other cultural icons, including the giant spray-paint can rebranded, à la Andy, as Campbell’s Tomato Spray. These MBW specials are wheat-pasted up and down the La Brea corridor, the Miracle Mile, Melrose, Fairfax . . . anyplace with an unadorned utility box or blank wall.