Five nominations and 23 years later, Leonardo Di Caprio's cold streak at the Oscars finally came to an end as he won the best actor trophy for his role of a wounded fur trapper seeking revenge in "The Revenant". The superstar, in his speech thanked his co-star Tom Hardy, director Inarritu for his cinematic vision and all the filmmakers, including his frequent collaborator Martin Scorsese, who helped him navigate through his career. DiCaprio, a keen environmentalist, also…