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In page The Slits:

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The group supported the Clash[2] on their 1977 White Riot tour along with Buzzcocks, the Jam, the Prefects and Subway Sect.[citation needed] Club performances of the Slits during this period are included in The Punk Rock Movie (1978). In November 1978, the Slits toured with the Clash again on the "Sort it Out Tour" and were joined by the Innocents who opened the shows.[3] Joe Strummer said the group would be "great" with intense gigging.[4]