Longtime Hollywood marketing executive Geoffrey Ammer, who worked with such animated films as “Toy Story 2,” “Mulan “and “A Bug’s Life,” died Sunday morning of a heart attack. The Toledo, Ohio native recently founded his own independent marketing and distribution company, Clarius Entertainment, serving as its president and CEO. Based in Beverly Hills, Clarius Entertainment had a number of projects in early stages, but had not yet financed and released a film.