At the Cannes Market, sales agency The Playmaker will be showing a teaser for Nikias Chryssos ’ horror film “Bloody Tennis.” Variety spoke to the German director about his debut English-language movie, which stars Sandra Guldberg Kampp (“Foundation”), seen in the first-look image from the film, above, and Golden Globe nominee Helena Zengel (“News of the World,” “The Legend of Ochi”). The cast also includes Elina Löwensohn (“Amateur”), Zlatko Burić (“Triangle of Sadness”), Lucie Zhang (“Paris,