Matthew McConaughey has nothing but love for his friend and former co-star Kate Hudson, and is reflecting on why they made such a good on-screen pair.The Oscar winner spoke with ET at the premiere of his new animated comedy at the Greek Theater in Los Angeles on Sunday, and he reflected on reconnecting with Hudson in a video chat he shared to Instagram last week.«She's fun to work with!» McConaughey marveled with a smile when asked about why he enjoys acting with Hudson. «She's fun, she's rock