Influenced by Inuit founding myths, Unikkaaqtuat celebrates the Inuit culture, its traditions, and eyesight for the foreseeable future, as a result of a cross-cultural collaboration. Vancouver Playhouse, 600 Hamilton, 7pm, From $20   The Drive International Performing Arts Competition continues with 27 works from 24 firms around city. A variety of Vancouver venues   Pacific Theatre provides Gramma, a poetic new tale of human connection in the loneliest of instances. Pacific Theatre, 1440 West twelfth, 8pm, $20-36.50   Thomas Middleton and William Rowley’s The Changeling is just one of the darkest and most sensual of the 17th century English tragedies. A tale of concealed sexual…