(CNN) Posters claiming Michael Jackson is innocent of sexual abuse allegations have gone on display on London buses, after the documentary "Leaving Neverland" aired in Britain.

In the four-hour documentary, which aired in a slightly shorter format over two nights in the UK this week, Wade Robson and James Safechuck accused Jackson of repeated sexual abuse when they were children.

After the film aired at Sundance in January, Jackson's family called it a " public lynching " and have filed suit against HBO, which co-produced the documentary. HBO is owned by CNN's parent company.

The London ads, of which there appear to be two designs, show a black and white photo of Jackson's face. One version has the word "INNOCENT" across his mouth and reads "FACTS DON'T LIE. PEOPLE DO." The other displays the hashtag "#MJINNOCENT."

Both versions direct viewers to the website mjinnocent.com, which lists purported evidence of Jackson's innocence.

Read More